From: Functional analysis of C1 family cysteine peptidases in the larval gut of Тenebrio molitor and Tribolium castaneum
Cathepsin
Free energy of binding (kcal/mol)
Substrate FRF
Substrate LRF
Human cathepsin L1
−7.7
- 6.1
TmL2
−7.6
-
TmL5
−7.1
−3.3
TmL7
TmL8
TmL13
−6.9
−5.5
TmB18
−3.9
TmB33
−8.7
−6.6